I'm not sure exactly where this South Park: The Stick of Truth video came from and why it's located on some random dude's YouTube channel, but it seems legit, so I'm posting it here:

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As you can see, the video mainly features South Park creators Matt Stone and Trey Parker, but a few lesser-known Obsidian personnel also make an appearance (dat beard!). Matt & Trey seem to know their shit, though - I appreciate their position on voiced vs silent protagonists.